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  2. Ground source heat pump - Wikipedia

    en.wikipedia.org/wiki/Ground_source_heat_pump

    A heat pump in combination with heat and cold storage. A ground source heat pump (also geothermal heat pump) is a heating/cooling system for buildings that use a type of heat pump to transfer heat to or from the ground, taking advantage of the relative constancy of temperatures of the earth through the seasons.

  3. Flat roof - Wikipedia

    en.wikipedia.org/wiki/Flat_roof

    A small Butynol roof installation on a residential flat roof in New Zealand. Butynol roofing is a type of roofing material made from synthetic rubber, specifically butyl rubber. It is widely used in New Zealand and other parts of the world for flat and low-slope roofs due to its exceptional durability, flexibility, and waterproofing capabilities.

  4. List of roof shapes - Wikipedia

    en.wikipedia.org/wiki/List_of_roof_shapes

    Satari: A Swedish variant on the monitor roof; a double hip roof with a short vertical wall usually with small windows, popular from the 17th century on formal buildings. [citation needed] (Säteritak in Swedish.) Mansard (French roof): A roof with the pitch divided into a shallow slope above a steeper slope. The steep slope may be curved.

  5. List of commercially available roofing materials - Wikipedia

    en.wikipedia.org/wiki/List_of_commercially...

    Roofing material is the outermost layer on the roof of a building, sometimes self-supporting, but generally supported by an underlying structure. A building's roofing material provides shelter from the natural elements. The outer layer of a roof shows great variation dependent upon availability of material, and the nature of the supporting ...

  6. Solar thermal collector - Wikipedia

    en.wikipedia.org/wiki/Solar_thermal_collector

    A heat exchange fluid protects against freeze damage down to a locally determined risk temperature that depends on the proportion of propylene glycol in the mixture. The use of glycol lowers the water's heat carrying capacity marginally, while the addition of an extra heat exchanger may lower system performance at low light levels. [citation ...

  7. Membrane roofing - Wikipedia

    en.wikipedia.org/wiki/Membrane_roofing

    These application types of membrane roofing show distinct advantages over the previously more common flat roofing method of asphalt and gravel (commonly referred to as Built-Up-Roofs or "BUR"). In asphalt and gravel application, it can be very difficult to create a proper seal at all seams and connection points.

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